Sample injection device for chemical detection

Abstract

The utility model relates to the field of chemical detection, in particular to a sample injection device for chemical detection, which comprises a base for loading a sample; the test tube rack is arranged in the base and used for assembling test tubes, and the rear side of the base is fixedly connected with a support; and the driving mechanism is mounted in the bracket. According to the sample injection device for chemical detection, the sample injection assembly is arranged, so that the sample injection pipe is convenient to disassemble and replace, the replacement difficulty is reduced, the detection efficiency is improved, the two sides of the outer part of the sample injection pipe are clamped between the limiting frames in front of the connecting frame to limit the sample injection pipe, and the sample injection efficiency is improved. Then the push rod at the upper end of the sample injection pipe is placed in the sleeve, the clamping blocks and the non-slip mats are driven to be attached to the outer portion of the push rod by rotating the screw rods on the two sides, so that the push rod is positioned, when disassembly is needed, the screw rods are directly screwed to loosen the clamping blocks, then the sample injection pipe is directly pulled out of the limiting frame, and therefore the assembly and disassembly method is more rapid.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical detection field, concretely relates to a sample feeding device of chemical detection. BACKGROUND

[0002] Chemical detection refers to the process of qualitative and quantitative analysis of matter through chemical experimental means, which mainly separates, identifies, measures and so on according to the chemical properties and reaction changes of matter to obtain the composition, structure, properties and change rule of matter, etc.

[0003] The existing sample feeding device of chemical detection, when feeding the sample, uses a sample injection tube to inject into a test tube, and the injection tube needs to be replaced or cleaned and disinfected regularly, but the existing sample feeding device is not convenient to disassemble the sample injection tube, and in the experiment of frequently replacing samples or continuous detection, the sample injection tube inconvenient to disassemble will significantly reduce the experimental efficiency, and the difficulty in disassembly may cause the experiment to be interrupted, affecting the continuity and stability of the experiment.

[0004] Therefore, it is necessary to invent a sample feeding device of chemical detection to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of sample feeding devices of chemical detection, by the outside two sides of sample injection tube are clamped between the limiting frame in front of connecting frame, sample injection tube is limited, after the upper end push rod of sample injection tube is placed in sleeve, by rotating two side screw rod, clamping block and non-slip mat are attached to the outside of push rod, to position push rod, when needing disassembly, directly loosen clamping block by screwing screw, then directly sample injection tube is extracted from limiting frame, so that installation and disassembly method is more fast, to solve the problems in the above background technology, the existing sample feeding device of chemical detection, when feeding the sample, uses a sample injection tube to inject into a test tube, and the injection tube needs to be replaced or cleaned and disinfected regularly, but the existing sample feeding device is not convenient to disassemble the sample injection tube, and in the experiment of frequently replacing samples or continuous detection, the sample injection tube inconvenient to disassemble will significantly reduce the experimental efficiency, and the difficulty in disassembly may cause the experiment to be interrupted, affecting the continuity and stability of the experiment.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of sample feeding device of chemical detection, including base, for loading sample;

[0007] Test tube rack, be set up in base interior, for assembling test tube, the rear side of base is fixedly connected with support:

[0008] A driving mechanism is installed inside the support and used to drive the sample feeding device, and the driving mechanism comprises a driving motor and a moving frame.

[0009] A sample feeding assembly is installed inside the driving mechanism and used to feed the sample, and the sample feeding assembly comprises a connecting frame and a sample feeding pipe.

[0010] Preferably, sliding grooves are formed on both sides of the inner part of the base, and the test tube frame is slidingly connected with the base.

[0011] Preferably, the driving motor is arranged on the right side of the support, the output end of the driving motor is fixedly connected with a first screw rod, and the inner part of the moving frame is threadedly connected with the outer part of the first screw rod.

[0012] Preferably, a motor is arranged on the inner side of the moving frame, the output end of the motor is fixedly connected with a second screw rod, the left side surface of the moving frame is provided with a sliding rail, the outer part of the second screw rod is threadedly connected with a supporting frame, and the left side of the supporting frame is fixedly provided with an electric sliding rail assembly.

[0013] Preferably, the connecting frame is installed outside the electric sliding rail assembly, a gas cylinder is fixedly arranged above the connecting frame, the output end of the gas cylinder is fixedly connected with a sleeve, the upper end of the sample feeding pipe is installed inside the sleeve, a limiting frame is fixedly connected to the outer side of the lower part of the connecting frame, and the sample feeding pipe is movably connected with the limiting frame.

[0014] Preferably, screw rods are threadedly penetrated through both sides of the inner part of the sleeve, clamping blocks are movably connected to the ends of the screw rods, and anti-skid pads are attached to the inner part of the clamping blocks.

[0015] In the above technical solution, the technical effects and advantages of the present application are as follows:

[0016] 1. The sample feeding pipe can be conveniently disassembled and replaced through the arrangement of the sample feeding assembly, which not only reduces the difficulty of replacement, but also improves the detection efficiency.

[0017] 2、Through the setting of the driving mechanism, the whole sample injection tube can be driven to move according to the positions of different test tubes, the driving motor switch on the right side of the support is turned on, the first lead screw is driven to rotate, the outer moving frame and the inside sample injection assembly are driven to move left and right through the rotation of the first lead screw, the inside of the moving frame is provided with a motor, the second lead screw is driven to rotate through the motor, the support frame and the sample injection assembly are driven to move forward and backward through the rotation of the second lead screw, and the inside of the support frame is also provided with an electric sliding rail assembly, so that the whole sample injection assembly can be driven to move up and down, and these driving designs can meet different injection requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a test tube rack structure schematic view of the utility model;

[0021] Figure 3 It is a driving mechanism structure schematic view of the utility model;

[0022] Figure 4 It is a sample injection assembly structure schematic view of the utility model;

[0023] Figure 5 It is a sleeve structure schematic view of the utility model.

[0024] Explanation of reference signs:

[0025] 1, base; 2, sliding groove; 3, test tube rack; 4, support; 5, driving mechanism; 501, driving motor; 502, first lead screw; 503, moving frame; 504, second lead screw; 505, sliding rail; 506, support frame; 507, electric sliding rail assembly; 6, sample injection assembly; 601, connecting frame; 602, air cylinder; 603, sleeve; 604, screw; 605, clamping block; 606, non-slip pad; 607, limiting frame; 608, sample injection tube. DETAILED DESCRIPTION

[0026] In order to make those skilled in the art better understand the technical scheme of the utility model, the utility model will be further described in detail in combination with the drawings.

[0027] The utility model provides a Figures 1-5A sample injection device for chemical detection is shown, comprising a base 1 for loading a sample;

[0028] A test tube rack 3 is arranged inside the base 1 for assembling test tubes, and the rear side of the base 1 is fixedly connected with a support 4;

[0029] A driving mechanism 5 is installed inside the support 4 for driving the injection device, and the driving mechanism 5 comprises a driving motor 501 and a moving frame 503;

[0030] An injection assembly 6 is installed inside the driving mechanism 5 for sample injection, and the injection assembly 6 comprises a connecting frame 601 and an injection tube 608. The injection tube 608 is limited by being clamped between the limiting frames 607 in front of the connecting frame 601 on both sides of the outer side of the injection tube 608, and then the upper end of the push rod of the injection tube 608 is placed in the sleeve 603. The push rod is positioned by rotating the two side screws 604 to make the clamping block 605 and the non-slip pad 606 stick to the outer side of the push rod. When disassembly is needed, the clamping block 605 is loosened by directly twisting the screw 604, and then the injection tube 608 can be directly pulled out from the limiting frame 607. In this way, the installation and disassembly method is more efficient.

[0031] As shown in Figure 1 and Figure 2 , grooves 2 are formed on both sides of the inside of the base 1, and the test tube rack 3 is slidingly connected with the base 1. The grooves 2 are formed on the inside of the base 1, so that the test tube rack 3 can be easily installed in the base 1 by the staff.

[0032] As shown in Figure 1 and Figure 3 , the driving motor 501 is arranged on the right side of the support 4, the output end of the driving motor 501 is fixedly connected with a first lead screw 502, and the inside of the moving frame 503 is threadedly connected with the outside of the first lead screw 502. By turning on the driving motor 501 switch on the right side of the support 4, the first lead screw 502 is driven to rotate, and the moving frame 503 on the outside and the injection assembly 6 on the inside are driven to move left and right.

[0033] As shown in Figure 3 , a motor is arranged on the inside of the moving frame 503, the output end of the motor is fixedly connected with a second lead screw 504, a slide rail 505 is arranged on the left side surface of the moving frame 503, and the outside of the second lead screw 504 is threadedly connected with a support frame 506. The left side of the support frame 506 is fixedly provided with an electric slide rail assembly 507. The motor is arranged on the inside of the moving frame 503, and the second lead screw 504 is driven to rotate by the motor. The support frame 506 and the injection assembly 6 are driven to move forward and backward by the rotation of the second lead screw 504. Meanwhile, the electric slide rail assembly 507 is also arranged on the inside of the support frame 506, which can drive the entire injection assembly 6 to move up and down.

[0034] As shown in Figure 3and Figure 4 As shown, the connecting frame 601 is installed on the outside of the electric slide rail assembly 507. A cylinder 602 is fixedly installed above the connecting frame 601. A sleeve 603 is fixedly connected to the output end of the cylinder 602. The upper end of the sample inlet tube 608 is installed inside the sleeve 603. A limit frame 607 is fixedly connected to the lower outer side of the connecting frame 601. The sample inlet tube 608 is movably engaged with the limit frame 607. The sample inlet tube 608 is engaged inside the limit frame 607 and the sleeve 603. Then, the cylinder 602 is turned on to drive the sleeve 603 to extend and retract, thereby driving the sample inlet tube 608 to extract the sample and inject the sample into the test tube.

[0035] like Figure 4 and Figure 5 As shown, screws 604 are threaded through both sides of the sleeve 603. One end of the screw 604 is movably connected to a clamping block 605. An anti-slip pad 606 is pasted inside the clamping block 605. The upper push rod of the sample inlet tube 608 is placed inside the sleeve 603. By rotating the screws 604 on both sides, the clamping block 605 and the anti-slip pad 606 are moved to stick to the outside of the push rod, thereby positioning the push rod.

[0036] The utility model discloses a chemical detection sample feeding device, which comprises a base, a support, a first screw rod, a moving frame, a second screw rod, a motor, a gas cylinder, a sleeve, a sample feeding pipe and a sample feeding assembly.

[0037] The above only describes some exemplary embodiments of the utility model through the way of illustration, without doubt, for ordinary skilled person in the art, under the condition of not deviating from the spirit and scope of the utility model, can modify the described embodiment in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A sample injection device for chemical detection, characterized in that: Includes a base (1) for loading the sample; A test tube rack (3) is installed inside the base (1) for assembling test tubes. A bracket (4) is fixedly connected to the rear side of the base (1). A drive mechanism (5) is installed inside the bracket (4) and is used to drive the sample injection device. The drive mechanism (5) includes a drive motor (501) and a moving frame (503). The sample injection assembly (6) is installed inside the drive mechanism (5) and is used for sample injection. The sample injection assembly (6) includes a connecting frame (601) and an injection tube (608).

2. The sample injection device for chemical detection according to claim 1, characterized in that: The base (1) has sliding grooves (2) on both sides inside, and the test tube rack (3) is slidably connected to the base (1).

3. The sample injection device for chemical detection according to claim 1, characterized in that: The drive motor (501) is located on the right side of the bracket (4). The output end of the drive motor (501) is fixedly connected to the first lead screw (502). The internal thread of the movable frame (503) is connected to the outside of the first lead screw (502).

4. The sample injection device for chemical detection according to claim 1, characterized in that: A motor is provided on the inner side of the movable frame (503), and a second lead screw (504) is fixedly connected to the output end of the motor. A slide rail (505) is provided on the left side surface of the movable frame (503). A support frame (506) is threadedly connected to the external side of the second lead screw (504), and an electric slide rail assembly (507) is fixedly provided on the left side of the support frame (506).

5. The sample injection device for chemical detection according to claim 4, characterized in that: The connecting frame (601) is installed on the outside of the electric slide rail assembly (507). A cylinder (602) is fixedly installed above the connecting frame (601). A sleeve (603) is fixedly connected to the output end of the cylinder (602). The upper end of the injection tube (608) is installed inside the sleeve (603). A limit frame (607) is fixedly connected to the lower outer side of the connecting frame (601). The injection tube (608) is movably engaged with the limit frame (607).

6. The sample injection device for chemical detection according to claim 5, characterized in that: The sleeve (603) has a screw (604) threaded through both sides inside. One end of the screw (604) is movably connected to a clamping block (605), and an anti-slip pad (606) is pasted inside the clamping block (605).

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